Design for a cigarette lighter



FIG. 1 is a perspective view of a cigarette lighter showing my new design;

FIG. 2 is a right end view thereof;

FIG. 3 is a left end view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a front elevational view thereof;

FIG. 7 is a rear elevational view thereof; and,

FIG. 8 is a perspective view showing the lighter after the lightable component thereof has been withdrawn from the lighter housing. 

The ornamental design for a design for a cigarette lighter, as shown and described. 